Status Information
Appendix B
GPIB-232CT User Manual
B-6
© National Instruments Corp.
GPIB Error Codes
When the ERR bit is set in status, a GPIB error or a serial port error has
occurred. The error code is indicated by
GPIB-error
or
serial-
error
.
The following paragraphs describe the
GPIB-errors
in detail.
NGER S/G
0
The GPIB-232CT reports this error when GPIB-232CT
detected no GPIB errors as a result of the last operation.
ECIC S
1
The GPIB-232CT records this error when you call a
function that requires that the GPIB-232CT be CIC and it
is not CIC.
In cases when the GPIB-232CT should always be the
Controller-In-Charge, the remedy is to be sure to call
sic
to send Interface Clear before attempting any of these
calls, and to avoid sending the command byte TCT (hex
09, Take Control). In multiple Controller-In-Charge
situations, the remedy is to always be certain that the CIC
bit appears in status before attempting these calls. If it is
not, you can call
wait
(CIC) to delay further processing
until control is passed to the GPIB-232CT.
